Means and Standard Deviations of the Look-Back Fixation Time (in ms) for the Target Sentences in Experiments 1–4, as a Function of Sentence Complexity and Background Condition.

Means and Standard Deviations of the Look-Back Fixation Time (in ms) for the Target Sentences in Experiments 1–4, as a Function of Sentence Complexity and Background Condition.实验1至4中目标句子的回视注视时间（Look-Back Fixation Time，单位为毫秒）的均值与标准差，其随句子复杂度与背景条件的变化而变化。